Title:
ALLOY
Document Type and Number:
Japanese Patent JP2003328068
Kind Code:
A
Abstract:
To provide a WC-Co alloy which hardly causes a brittle fracture.
This alloy contains Co and WC, wherein particles of WC appearing on the cut surface when the alloy is levelly cut, have an average value of maximum lengths in a range of 6 μm or longer but 20 μm or shorter. The skewness of a distribution of the above maximum lengths may be 5 or less. Furthermore, a ratio of the number of the WC particles having the maximum length of 2 μm or less to the number of the all WC particles appearing on the cut surface, may be 10% or less. In addition, the ratio of mass of Co to total mass of WC and Co may be 4-18 wt.%.
Inventors:
TAKADA JUN
NAKANISHI MAKOTO
SHIMOITANI YOSHINOBU
NAKANISHI MAKOTO
SHIMOITANI YOSHINOBU
Application Number:
JP2002134644A
Publication Date:
November 19, 2003
Filing Date:
May 09, 2002
Export Citation:
Assignee:
ALLOY KOGYO KK
International Classes:
C22C29/08; (IPC1-7): C22C29/08
Attorney, Agent or Firm:
Hidetoshi Kasahara